Improvement in hemmers for sewing-machines



C.. H. WILLCOXL Hemmer for Sewing Machines;

.No. 43,657. v Patented July 26,1864.

NITED STATES PATENT. OFFICE.

CHARLES H. WILLOOX, OF NEW YORK, N. Y., ASSIGNOR T0 JAMES wILLcoX or SAME PLACE.

IMPROVEMENT IN HEMMERS FOR SEWING-MACHINES.

Specification forming part of Letters Patent No. 13,657, dated July 26, 1864.

To all whom it may concern:

Be it known that I, CHARLES H. WILLOOX, of New York, in the county and State of New York,haveinvented certain new and useful Improvements in Sewing-Machines; andl hereby declare that the following is a full, clear, and exact description of the same.

In all modern sewing-machines the various operations of hemming, felling, cording, 850., may be performed automatically by means of devices or contrivances which are used as attachments thereto. These hemming, felling, or other attachments require the nicest adj ustment to insure the regular performance of the work, for, unless arranged in a certain fixed relation to the feeding and sewing mechanism, they will either tail to perform the work intended or produce it in an irregular and imperfect manner. In sewing-machines heretofore constructed hemmers, felling and other like devices were secured to the sewing-table or cloth-plate by means of a set-screw. The objectionsto thismodeofattachmentconsisted,

I first, in the difliculty of properly adjusting the devices; second, in their liability to move or be displaced.

The object of this invention is to facilitate the correct adjustmentofthe said devices, and

when adjusted to obviate their moving or being displaced; and my invention consists in attaching a check-plate to the under sides of heminers or felling-guides, such plate being provided at one end with a check-pin, which enters a hole in the cloth-plate ot',the sewingmachine, by which simple contrivance the hemmer or feller can always be placed in its correct position, while it is at the same time effectually prevented from moving or becoming accidentally displaced by the working of the machine.

In order that the said invention may be fully understood, I shall now proceed more particularly to describe the same, and for that purpose I shall refer to the several figures on the sheet of drawings hereunto annexed, the same letters of reference indicating corresponding parts in all the corresponding figures.

Figure 1 represents a top and Fig. 2 a side elevation of the check or adjusting plate Got the self-adjusting hemmer, which plateis shown attached to a hem mer, H, at Figs. 3 311(14, representing respectively elevation and plan of the I tained the nature of the said invention and the manner in which the same is or maybe used or carried into effect,'I-would observe in conclusion that what I consider to be novel and originai and therefore claim as my invention,,is

The application and use,in combination with a hemmer or other attachment to sewing-ma-. chines, of a check or adjusting plate, substantially as herein shown and described.

In testimony whereofl have signed my name to this specification before two subscribing wit- IJQSSOS.

CHAS. H. WILLOOX.

Witnesses:

E. P. HATCH, JAMES KILNER. 

